BE766138A - CAPROLACTAM PURIFICATION PROCESS - Google Patents

CAPROLACTAM PURIFICATION PROCESS

Info

Publication number: BE766138A
Authority: BE; Belgium
Prior art keywords: purification process; caprolactam purification; caprolactam; purification
Prior art date: 1970-04-22

Application number

BE766138A

Other languages

French (fr)

Original Assignee

Bayer Ag

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1970-04-22

Filing date

1971-04-22

Publication date

1971-09-16

1971-04-22 Application filed by Bayer Ag filed Critical Bayer Ag

1971-09-16 Publication of BE766138A publication Critical patent/BE766138A/en

Links

JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 title 2
238000000746 purification Methods 0.000 title 1

Classifications

- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
- C07D201/16—Separation or purification

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Other In-Based Heterocyclic Compounds (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Pyrrole Compounds (AREA)

BE766138A 1970-04-22 1971-04-22 CAPROLACTAM PURIFICATION PROCESS BE766138A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE2019431A DE2019431C2 (en)	1970-04-22	1970-04-22	Process for purifying caprolactam

Publications (1)

Publication Number	Publication Date
BE766138A true BE766138A (en)	1971-09-16

Family

ID=5768844

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BE766138A BE766138A (en)	1970-04-22	1971-04-22	CAPROLACTAM PURIFICATION PROCESS

Country Status (9)

Country	Link
US (1)	US3755305A (en)
BE (1)	BE766138A (en)
CA (1)	CA921481A (en)
CH (1)	CH553784A (en)
DE (1)	DE2019431C2 (en)
ES (1)	ES390416A1 (en)
FR (1)	FR2086263B1 (en)
GB (1)	GB1294614A (en)
NL (1)	NL7104914A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2641454A1 (en) *	1976-09-15	1978-03-23	Bayer Ag	METHOD FOR CLEANING UP EPSILON CAPROLACTAM
DE2926279A1 (en) *	1979-06-29	1981-01-08	Basf Ag	METHOD FOR CLEANING CAPROLACTAM
TW215084B (en) *	1992-04-17	1993-10-21	Sumitomo Chemical Co	Process for producing a high purity caprolactam

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2692878A (en) *		1954-10-26		Method forithe continuous produc-
US2221369A (en) *		1940-11-12		Process foe producing lactams
US2861988A (en) *		1958-11-25		Caprolactam manufacture
US2758991A (en) *		1956-08-14		Hvvevvtofry
CH450433A (en) *	1965-06-15	1968-01-31	Inventa Ag	Process for purifying lactams
GB1198428A (en) *	1967-07-18	1970-07-15	Bp Chem Int Ltd	Solvent Extraction Process for Caprolactam

1970
- 1970-04-22 DE DE2019431A patent/DE2019431C2/en not_active Expired
1971
- 1971-03-24 CH CH427271A patent/CH553784A/en not_active IP Right Cessation
- 1971-04-13 NL NL7104914A patent/NL7104914A/xx not_active Application Discontinuation
- 1971-04-15 US US00134310A patent/US3755305A/en not_active Expired - Lifetime
- 1971-04-19 CA CA110660A patent/CA921481A/en not_active Expired
- 1971-04-21 ES ES390416A patent/ES390416A1/en not_active Expired
- 1971-04-21 GB GB00347/71A patent/GB1294614A/en not_active Expired
- 1971-04-22 FR FR7114411A patent/FR2086263B1/fr not_active Expired
- 1971-04-22 BE BE766138A patent/BE766138A/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
CA921481A (en)	1973-02-20
DE2019431C2 (en)	1981-10-15
ES390416A1 (en)	1973-06-01
FR2086263A1 (en)	1971-12-31
DE2019431A1 (en)	1971-11-04
CH553784A (en)	1974-09-13
NL7104914A (en)	1971-10-26
US3755305A (en)	1973-08-28
GB1294614A (en)	1972-11-01
FR2086263B1 (en)	1975-07-04

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Legal Events

Date

Code

Title

Description

1984-10-31

RE

Patent lapsed

Owner name: FARBENFABRIKEN BAYER A.G.

Effective date: 19840422